Streamline malloc hooks. #182

Job	Run time
Select platforms	1s
linux-x64-hs-minimal / build (debug)	1m 15s
linux-x64 / build (debug)	1m 25s
docs / build (debug)	1m 25s
linux-x64-hs-nopch / build (debug)	1m 24s
linux-x64 / build (release)	1m 21s
linux-x64-hs-optimized / build (debug)	1m 23s
linux-x64-hs-zero / build (debug)	1m 25s
linux-x86 / build (debug)	1m 25s
macos-aarch64 / build (debug)	1m 7s
linux-x86 / build (release)	1m 22s
macos-aarch64 / build (release)	1m 10s
macos-x64 / build (debug)	1m 9s
windows-aarch64 / build (debug)	1m 9s
macos-x64 / build (release)	1m 16s
windows-aarch64 / build (release)	1m 9s
windows-x64 / build (debug)	1m 5s
windows-x64 / build (release)	1m 5s
windows-x64	1s
macos-x64	1s
linux-x86	1s
linux-x64	1s
linux-cross-compile	1s
Remove bundle artifacts	1s
	21m 42s

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